Espeon 250GB Portable SSD Solid State USB Drive, USB 3.2 Gen2 UASP SuperSpeed+. Up to 600MB/s Read, 260MB/s Write - SS+

The Espeon SS+ 500GB Portable SSD Solid State USB Drive, USB 3.2 Gen2 UASP SuperSpeed+ Up to 600MB/s Read, 500MB/s Write is really fast. It is well made and the plastic body seems to be of good quality. The form factor is similar to an ordinary USB flash drive and is smaller than the average SSD flash drives in the market. I tested the data transmission speed using the software USB Flash Benchmark in a Dell Inspiron laptop and the Espeon SS+ was able to achieve an amazing 420MB/s of read speed as you can see in the attached picture (limited by my laptop port maximum speed). I had no issues backing up a huge amount of data from my computer. For the form factor and data speed, I definitey recommend it.

Use this for my photography trips where I back up my photos on my laptop and then onto this while Im out for temporary redundant storage on the chance something happens to my laptop. The USB does perfect and havent found any issues while making transfers and while doing larger transfers >10 gigabytes, havent seen a noticeable dip in write performance. Love it and keep it at the end of my keychain.

The USB stick comes in a basic display card and is easily cut open with scissors. The white shell of the drive feels like a very cheap plastic, which does not lend a premium feel to this USB drive. It has a cap that pops off with just the right amount of force, neither difficult to pull off nor am I worried itll accidentally come off. The USB interface is securely mounted, as theres no wiggle between it and the plastic housing (something Ive seen on cheaper USB sticks). After plugging it into my computer, I was pleasantly surprised to find my system reported that this 250GB drive actually has the advertised capacity (250.06GB), as usually manufacturers overstate the available capacity. I gave it a fresh format in exFAT so itll work in both my Mac and my PC, and ran it through Blackmagics Disk Speed Test Tool, selecting the 5GB option. Now this drive really surprised me, as its advertised at 260 MB/s write speed and up to 600 MB/s read. The Blackmagic test, however, showed it far exceeding the advertised write speed, hitting 583.5 MB/s. More than double the speed! Write speed was more in line with the advertised speeds, hitting 542.1 MB/s. Now, most drives can handle smaller transfers like that quickly, but the real test is if they bottleneck on larger transfers, as the faster cache gets filled and the actual flash memory speed becomes the limiting factor. Also, the number of files can affect transfer speeds, as many small files will take longer than one large file (of the same total size) due to inefficiencies. To test this, I made several transfers to/from the drive of various sizes and file counts. I made sure to give the drive a break between each test so heat buildup wouldnt affect the times. I was timing off my stopwatch, so the times arent extremely precise due to possible variance in my reaction time, but should be pretty close and accurate enough to get the overall picture. If you look at my chart, youll see that both read and write speeds are best under 20GB. I observed that after about 12-13GB, speeds dropped off, likely as the cache got saturated and the drive was forced to slow down and write directly to the flash memory. To test this a little further, I made notes of how many seconds it took to hit 10GB increments with the 45.94GB transfer, and heres the times it hit each marker: 10GB - write 18s, read 20s 20GB - write 50s (+32s), read 50s (+30s) 30GB - write 1m 37s (+47s), read 1m 20s (+30s) 40GB - write 2m 56s (+79s), read 1m 51s (+31s) As you can see, the write speed suffers the most as the transfer gets larger, but the read speed settles in to about 30 seconds per 10GB. I didnt run this test on all the folders, but noticed similar behavior over the course of the larger transfers. For a control subject and to make sure my Macbook SSD drive wasnt a bottleneck (it shouldnt be, as they are way faster than this USB should be), I ran the same file transfers to my Sandisk Extreme SSD (gen 2). As you can see from the chart, it was faster in all scenarios, and significantly faster in a good number of them. This also brings up an important point: at the current $45 price point for the 250GB Espeon, youre paying $0.18 per GB. With the much faster 1TB Sandisk Extreme SSD clocking in at $130, youre only paying $0.13 per GB, a much better value. That said, if you dont want to lay out so much money and want the more portable USB stick form factor, the Epseon USB stick does a pretty admirable job and when writing under 20GB, far exceeds its advertised write speeds, though read speeds fell a little short under all my tests. Overall, Im pretty pleased with the performance of this drive. While it gets fairly warm to the touch under load, I never felt like it was excessively hot. The plastic housing leaves a little to be desired, but Ill take a cheaper shell with good internals over a slow USB drive any day. There are better values if all you care about is speed and drive capacity, but for a USB stick, this one isnt too bad.

Thats about 500mb second. From an m.2 via USB c. If performance is the deciding factor then this drive is an excellent choice. I like the color too, it makes it easy to see.

ほとんどの製品を試しましたが、この商品以外にmac,windows両方でrecovery ディスクに使えた安価な商品はありませんでした。私は、同容量を追加で２個、５００GBを１個追加購入しましました。

This is a great solution for me, since Im using multiple computers for crypto farming. I can move files around over my network, or use on line storage, but this little guy is faster and doesnt eat up bandwidth moving chia plots around as needed to optimize drive space. My computers immediately recognized it and I was able to use it immediately without any software or special config - truly plug and play. Great price, great device.

My USB-C hub does not have a USB3.2 slot. Therefore, I have connected this using USB3.1 on the MBP. Despite this, I am satisfied with the speed of this small thumbdrive. Using this drive as a time machine for my MacBook, it took around 1 hour and 30 minutes to copy 375GB of data. However, it didnt get too hot. Using USB3.2, I expect a much faster transfer rate. This is a great drive for the price of $80 and is a good choice for everyday use.

本体はプラスチック製ですがほんのり熱くなる程度 キャップはしっかり閉められるので、自然とはずれることはなさそう。 LEDがありアクセス中に赤く光ります。（本体後方） アクセス速度は画像の通りで及第点だと思います。 初期フォーマットはexFATで届いてすぐ使えると思います。 Windowsはもちろんですが M1 MacBookAir OS12.3.1でも問題なく認識、使えてます。 購入選択肢に入ってくる良い製品だと思います。

見た目やサイズ感は普通のUSBメモリーみたいですが、SSDというだけあって普通のUSBメモリーよりはるかに速いです。 USB 3.2 Gen.2ポートに接続してCrystalDiskMarkを実行してみた結果下記の様になりました。 ------------------------------------------------------------------------------ CrystalDiskMark 8.0.4 Shizuku Edition x64 (C) 2007-2021 hiyohiyo Crystal Dew World: crystalmark.info ------------------------------------------------------------------------------ * MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s] * KB = 1000 bytes, KiB = 1024 bytes [Read] SEQ 1MiB (Q= 8, T= 1): 616.994 MB/s [ 588.4 IOPS] < 13564.13 us> SEQ 1MiB (Q= 1, T= 1): 417.657 MB/s [ 398.3 IOPS] < 2508.52 us> RND 4KiB (Q= 32, T= 1): 211.652 MB/s [ 51672.9 IOPS] < 618.86 us> RND 4KiB (Q= 1, T= 1): 30.347 MB/s [ 7408.9 IOPS] < 134.73 us> [Write] SEQ 1MiB (Q= 8, T= 1): 624.775 MB/s [ 595.8 IOPS] < 13388.87 us> SEQ 1MiB (Q= 1, T= 1): 610.332 MB/s [ 582.1 IOPS] < 1716.63 us> RND 4KiB (Q= 32, T= 1): 262.485 MB/s [ 64083.3 IOPS] < 498.31 us> RND 4KiB (Q= 1, T= 1): 75.639 MB/s [ 18466.6 IOPS] < 54.00 us> Profile: Default Test: 1 GiB (x5) [F: 0% (0/466GiB)] Mode: Time: Measure 5 sec / Interval 5 sec Date: 2022/05/29 23:29:04 OS: Windows 11 Professional [10.0 Build 22000] (x64) 見ての通りシーケンシャルリードライト共に600MB/sを超える速度でかなり速いです。 Gen.1のUSBに接続すると450MB/s前後まで落ち込みますがそれでも普通のUSBメモリーと比べれば圧倒的に高速です。 ただUSBコントローラによっては相性問題が発生するみたいでGen.2対応コントローラのGen.1ポートに接続したらライトはGen.1なりの速度でしたがシーケンシャルリードが60MB/sまで落ちました。 他のUSBコントローラのGen.1ポートでは特に問題無かったので異常に遅かった場合は別のポートにさしてみると改善する可能性があります。 一応念のためH2testwで全容量チェックしましたが無事にパスしたので最近流行りの容量詐欺の心配も無いです。 普通のUSBメモリーと比べると割高ではありますが高速なアクセスを重視する人にはおすすめです。

The manufacturer claims 260 MB/s writes and 600 MB/s read speeds I was only able to get 345 MB/s reads and 280 MB/s write. I saw other reviewers post read speeds of 455 MB/s so I believe the claim of 600MB/s maybe a little bit on the far side but this drive is still blazing fast. The write speed was higher than the claimed 260 MB/s but the reads were slower than the 600 MB/s claim by a large margin. I tested my read speeds from my M.2 drive which I was using on the test and I was getting 2100MB/s reads and 2000MB/s writes on my Western Digital Black NVMe drive. I tested my SanDisk portable NVMe SSD and connected on the same USB 3.2 port was able to get 720 MB/s read and 755 MB/s writes so my system is capable of pushing the limits of the portable USB drive. The drive was recognized as a USB 3.2 device on my Dell desktop 5090 specs: i7-11700T, 32 GB DDR4 3200MHz memory, M.2 NVMe WD Black drive, Windows 10 Pro When copying to/from a NVMe drive connected via a external USB drive enclosure I am able to get over 900MB/s reads and 600 MB/s writes to a Samsung M.2 NVMe V1.3 drive on my USB 3.2 port so the bottleneck is with the portable SSD drive. One thing I noticed when copying large amounts of data to the drive the write speed begins to drop as the drive heats up. I started the test and the drive temperature was 48C and after copying over 100GB the temperature had risen to 70C and while copying the drive speed decreased from around 285 MB/s to 135 MB/s I suspect due to the heat the drive started to throttle the write for thermal protection. The price to storage capacity and the speed makes this a great value because for $45 dollars you get a 256GB thumb drive with blazing speeds in a very compact size. I have several other 256GB thumb drives and they average around 45 MB/s to 55 MB/s nothing close to the 350 MB/s this drive delivers in real world usage.